The company are _______ their new sort of toothbrush on televisi

The company are _______ their new sort of toothbrush on television.
A、raising
B、improving
C、accelerating
D、promoting
【正确答案】：D
【题目解析】：raise 提升；improve 改善；accelerate 使加速；promote 促进，推销句意： 这家公司正在电视上推销他们的新型牙刷。